<?php
/**
 * ---------------------------------------------------------------------
 * GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2015-2018 Teclib' and contributors.
 *
 * http://glpi-project.org
 *
 * based on GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2003-2014 by the INDEPNET Development Team.
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * GLPI is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GLPI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GLPI. If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------
 */

if (!defined('GLPI_ROOT')) {
   die("Sorry. You can't access this file directly");
}

/**
 * Contract_Item Class
 *
 * Relation between Contracts and Items
**/
class Contract_Item extends CommonDBRelation{

   // From CommonDBRelation
   static public $itemtype_1 = 'Contract';
   static public $items_id_1 = 'contracts_id';

   static public $itemtype_2 = 'itemtype';
   static public $items_id_2 = 'items_id';


   function getForbiddenStandardMassiveAction() {

      $forbidden   = parent::getForbiddenStandardMassiveAction();
      $forbidden[] = 'update';
      return $forbidden;
   }


   function canCreateItem() {

      // Try to load the contract
      $contract = $this->getConnexityItem(static::$itemtype_1, static::$items_id_1);
      if ($contract === false) {
         return false;
      }

      // Don't create a Contract_Item on contract that is alreay max used
      // Was previously done (until 0.83.*) by Contract_Item::can()
      if (($contract->fields['max_links_allowed'] > 0)
          && (countElementsInTable($this->getTable(),
                                  ['contracts_id'=> $this->input['contracts_id']])
                >= $contract->fields['max_links_allowed'])) {
         return false;
      }

      return parent::canCreateItem();
   }


   static function getTypeName($nb = 0) {
      return _n('Link Contract/Item', 'Links Contract/Item', $nb);
   }

   static function getSpecificValueToDisplay($field, $values, array $options = []) {

      if (!is_array($values)) {
         $values = [$field => $values];
      }
      switch ($field) {
         case 'items_id':
            if (isset($values['itemtype'])) {
               if (isset($options['comments']) && $options['comments']) {
                  $tmp = Dropdown::getDropdownName(getTableForItemtype($values['itemtype']),
                                                   $values[$field], 1);
                  return sprintf(__('%1$s %2$s'), $tmp['name'],
                                 Html::showToolTip($tmp['comment'], ['display' => false]));

               }
               return Dropdown::getDropdownName(getTableForItemtype($values['itemtype']),
                                                $values[$field]);
            }
            break;
      }
      return parent::getSpecificValueToDisplay($field, $values, $options);
   }


   static function getSpecificValueToSelect($field, $name = '', $values = '', array $options = []) {

      if (!is_array($values)) {
         $values = [$field => $values];
      }
      $options['display'] = false;
      switch ($field) {
         case 'items_id' :
            if (isset($values['itemtype']) && !empty($values['itemtype'])) {
               $options['name']  = $name;
               $options['value'] = $values[$field];
               return Dropdown::show($values['itemtype'], $options);
            }
            break;
      }
      return parent::getSpecificValueToSelect($field, $name, $values, $options);
   }


   function rawSearchOptions() {
      $tab = [];

      $tab[] = [
         'id'                 => '2',
         'table'              => $this->getTable(),
         'field'              => 'id',
         'name'               => __('ID'),
         'massiveaction'      => false,
         'datatype'           => 'number'
      ];

      $tab[] = [
         'id'                 => '3',
         'table'              => $this->getTable(),
         'field'              => 'items_id',
         'name'               => __('Associated item ID'),
         'massiveaction'      => false,
         'datatype'           => 'specific',
         'additionalfields'   => ['itemtype']
      ];

      $tab[] = [
         'id'                 => '4',
         'table'              => $this->getTable(),
         'field'              => 'itemtype',
         'name'               => __('Type'),
         'massiveaction'      => false,
         'datatype'           => 'itemtypename',
         'itemtype_list'      => 'contract_types'
      ];

      return $tab;
   }


   /**
    * @since 0.84
    *
    * @param $contract_id   contract ID
    * @param $entities_id   entity ID
    *
    * @return array of items linked to contracts
   **/
   static function getItemsForContract($contract_id, $entities_id) {

      $items = [];

      $types_iterator = self::getDistinctTypes($contract_id);

      while ($type_row = $types_iterator->next()) {
         $itemtype = $type_row['itemtype'];
         if (!getItemForItemtype($itemtype)) {
            continue;
         }

         $iterator = self::getTypeItems($contract_id, $itemtype);
         while ($objdata = $iterator->next()) {
            $items[$itemtype][$objdata['id']] = $objdata;
         }
      }

      return $items;
   }


   function getTabNameForItem(CommonGLPI $item, $withtemplate = 0) {
      global $CFG_GLPI, $IS_TWIG;

      // Can exists on template
      if (Contract::canView()) {
         $nb = 0;
         switch ($item->getType()) {
            case 'Contract' :
               if ($_SESSION['glpishow_count_on_tabs'] && !$IS_TWIG) {
                  $nb = self::countForMainItem($item);
               }
               return self::createTabEntry(_n('Item', 'Items', Session::getPluralNumber()), $nb);

            default :
               if ($_SESSION['glpishow_count_on_tabs']
                   && in_array($item->getType(), $CFG_GLPI["contract_types"]) && !$IS_TWIG) {
                   $nb = self::countForItem($item);
               }
               return self::createTabEntry(Contract::getTypeName(Session::getPluralNumber()), $nb);
         }
      }
      return '';
   }


   static function displayTabContentForItem(CommonGLPI $item, $tabnum = 1, $withtemplate = 0) {
      global $CFG_GLPI;

      switch ($item->getType()) {
         case 'Contract' :
            self::showForContract($item, $withtemplate);

         default :
            if (in_array($item->getType(), $CFG_GLPI["contract_types"])) {
               self::showForItem($item, $withtemplate);
            }
      }
      return true;
   }


   /**
    * Duplicate contracts from an item template to its clone
    *
    * @since 0.84
    *
    * @param string  $itemtype     itemtype of the item
    * @param integer $oldid        ID of the item to clone
    * @param integer $newid        ID of the item cloned
    * @param string  $newitemtype  itemtype of the new item (= $itemtype if empty) (default '')
    *
    * @return void
   **/
   static function cloneItem($itemtype, $oldid, $newid, $newitemtype = '') {
      global $DB;

      if (empty($newitemtype)) {
         $newitemtype = $itemtype;
      }

      $result = $DB->request(
         [
            'SELECT' => 'contracts_id',
            'FROM'   => self::getTable(),
            'WHERE'  => [
               'items_id' => $oldid,
               'itemtype' => $itemtype,
            ],
         ]
      );
      foreach ($result as $data) {
         $contractitem = new self();
         $contractitem->add(['contracts_id' => $data["contracts_id"],
                                  'itemtype'     => $newitemtype,
                                  'items_id'     => $newid]);
      }
   }


   /**
    * Print an HTML array of contract associated to an object
    *
    * @since 0.84
    *
    * @param CommonDBTM $item         CommonDBTM object wanted
    * @param boolean    $withtemplate not used (to be deleted)
    *
    * @return void
   **/
   static function showForItem(CommonDBTM $item, $withtemplate = 0) {

      $itemtype = $item->getType();
      $ID       = $item->fields['id'];

      if (!Contract::canView()
          || !$item->can($ID, READ)) {
         return;
      }

      $canedit = $item->can($ID, UPDATE);
      $rand = mt_rand();

      $iterator = self::getListForItem($item);
      $number = count($iterator);

      $contracts = [];
      $used      = [];
      while ($data = $iterator->next()) {
         $contracts[$data['id']] = $data;
         $used[$data['id']]      = $data['id'];
      }
      if ($canedit && ($withtemplate != 2)) {
         echo "<div class='firstbloc'>";
         echo "<form name='contractitem_form$rand' id='contractitem_form$rand' method='post'
                action='".Toolbox::getItemTypeFormURL(__CLASS__)."'>";
         echo "<input type='hidden' name='items_id' value='$ID'>";
         echo "<input type='hidden' name='itemtype' value='$itemtype'>";

         echo "<table class='tab_cadre_fixe'>";
         echo "<tr class='tab_bg_2'><th colspan='2'>".__('Add a contract')."</th></tr>";

         echo "<tr class='tab_bg_1'><td>";
         Contract::dropdown(['entity'  => $item->getEntityID(),
                                  'used'    => $used,
                                  'expired' => false]);

         echo "</td><td class='center'>";
         echo "<input type='submit' name='add' value=\""._sx('button', 'Add')."\" class='submit'>";
         echo "</td></tr>";
         echo "</table>";
         Html::closeForm();
         echo "</div>";
      }

      echo "<div class='spaced'>";
      if ($withtemplate != 2) {
         if ($canedit && $number) {
            Html::openMassiveActionsForm('mass'.__CLASS__.$rand);
            $massiveactionparams = ['num_displayed' => min($_SESSION['glpilist_limit'], $number),
                                         'container'     => 'mass'.__CLASS__.$rand];
            Html::showMassiveActions($massiveactionparams);
         }
      }
      echo "<table class='tab_cadre_fixehov'>";

      $header_begin = "<tr>";
      $header_top = '';
      $header_bottom = '';
      $header_end = '';
      if ($canedit && $number && ($withtemplate != 2)) {
         $header_top    .= "<th width='10'>".Html::getCheckAllAsCheckbox('mass'.__CLASS__.$rand);
         $header_top    .= "</th>";
         $header_bottom .= "<th width='10'>".Html::getCheckAllAsCheckbox('mass'.__CLASS__.$rand);
         $header_bottom .= "</th>";
      }

      $header_end .= "<th>".__('Name')."</th>";
      $header_end .= "<th>".__('Entity')."</th>";
      $header_end .= "<th>"._x('phone', 'Number')."</th>";
      $header_end .= "<th>".__('Contract type')."</th>";
      $header_end .= "<th>".__('Supplier')."</th>";
      $header_end .= "<th>".__('Start date')."</th>";
      $header_end .= "<th>".__('Initial contract period')."</th>";
      $header_end .= "</tr>";

      if ($number > 0) {
         echo $header_begin.$header_top.$header_end;
         Session::initNavigateListItems(__CLASS__,
                              //TRANS : %1$s is the itemtype name,
                              //         %2$s is the name of the item (used for headings of a list)
                                        sprintf(__('%1$s = %2$s'),
                                                $item->getTypeName(1), $item->getName()));
         foreach ($contracts as $data) {
            $cID         = $data["id"];
            Session::addToNavigateListItems(__CLASS__, $cID);
            $contracts[] = $cID;
            $assocID     = $data["linkid"];
            $con         = new Contract();
            $con->getFromResultSet($data);
            echo "<tr class='tab_bg_1".($con->fields["is_deleted"]?"_2":"")."'>";
            if ($canedit && ($withtemplate != 2)) {
               echo "<td width='10'>";
               Html::showMassiveActionCheckBox(__CLASS__, $assocID);
               echo "</td>";
            }
            echo "<td class='center b'>";
            $name = $con->fields["name"];
            if ($_SESSION["glpiis_ids_visible"]
                || empty($con->fields["name"])) {
               $name = sprintf(__('%1$s (%2$s)'), $name, $con->fields["id"]);
            }
            echo "<a href='".Contract::getFormURLWithID($cID)."'>".$name;
            echo "</a></td>";
            echo "<td class='center'>";
            echo Dropdown::getDropdownName("glpi_entities", $con->fields["entities_id"])."</td>";
            echo "<td class='center'>".$con->fields["num"]."</td>";
            echo "<td class='center'>";
            echo Dropdown::getDropdownName("glpi_contracttypes", $con->fields["contracttypes_id"]).
               "</td>";
            echo "<td class='center'>".$con->getSuppliersNames()."</td>";
            echo "<td class='center'>".Html::convDate($con->fields["begin_date"])."</td>";

            echo "<td class='center'>".sprintf(__('%1$s %2$s'), $con->fields["duration"],
                                               _n('month', 'months', $con->fields["duration"]));
            if (($con->fields["begin_date"] != '')
                && !empty($con->fields["begin_date"])) {
               echo " -> ".Infocom::getWarrantyExpir($con->fields["begin_date"],
                                                     $con->fields["duration"], 0, true);
            }
            echo "</td>";
            echo "</tr>";
         }
         echo $header_begin.$header_bottom.$header_end;
         echo "</table>";
      } else {
         echo "<table class='tab_cadre_fixe'>";
         echo "<tr><th>".__('No item found')."</th></tr></table>";
      }

      echo "</table>";
      if ($canedit && $number && ($withtemplate != 2)) {
         $massiveactionparams['ontop'] = false;
         Html::showMassiveActions($massiveactionparams);
         Html::closeForm();
      }
      echo "</div>";
   }


   /**
    * Print the HTML array for Items linked to current contract
    *
    * @since 0.84
    *
    * @param Contract $contract     Contract object
    * @param boolean  $withtemplate (default 0)
    *
    * @return void (display)
   **/
   static function showForContract(Contract $contract, $withtemplate = 0) {
      global $DB, $CFG_GLPI;

      $instID = $contract->fields['id'];

      if (!$contract->can($instID, READ)) {
         return false;
      }
      $canedit = $contract->can($instID, UPDATE);
      $rand    = mt_rand();

      $types_iterator = self::getDistinctTypes($instID);
      $number = count($types_iterator);

      $data    = [];
      $totalnb = 0;
      $used    = [];
      while ($type_row = $types_iterator->next()) {
         $itemtype = $type_row['itemtype'];
         if (!($item = getItemForItemtype($itemtype))) {
            continue;
         }
         if ($item->canView()) {
            $itemtable = getTableForItemType($itemtype);
            $itemtype_2 = null;
            $itemtable_2 = null;

            $params = [
               'SELECT' => [
                  $itemtable . '.*',
                  self::getTable() . '.id AS linkid',
                  'glpi_entities.id AS entity'
               ],
               'FROM'   => 'glpi_contracts_items',
               'WHERE'  => [
                  'glpi_contracts_items.itemtype'     => $itemtype,
                  'glpi_contracts_items.contracts_id' => $instID
               ]
            ];

            if ($item instanceof Item_Devices) {
               $itemtype_2 = $itemtype::$itemtype_2;
               $itemtable_2 = $itemtype_2::getTable();
               $namefield = 'name_device';
               $params['SELECT'][] = $itemtable_2 . '.designation AS ' . $namefield;
            } else {
               $namefield = $item->getNameField();
               $namefield = "$itemtable.$namefield";
            }

            $params['LEFT JOIN'][$itemtable] = [
               'FKEY' => [
                  $itemtable        => 'id',
                  self::getTable()  => 'items_id'
               ]
            ];
            if ($itemtype != 'Entity') {
               $params['LEFT JOIN']['glpi_entities'] = [
                  'FKEY' => [
                     $itemtable        => 'entities_id',
                     'glpi_entities'   => 'id'
                  ]
               ];
            }

            if ($item instanceof Item_Devices) {
               $id_2 = $itemtype_2::getIndexName();
               $fid_2 = $itemtype::$items_id_2;

               $params['LEFT JOIN'][$itemtable_2] = [
                  'FKEY' => [
                     $itemtable     => $fid_2,
                     $itemtable_2   => $id_2
                  ]
               ];
            }

            if ($item->maybeTemplate()) {
               $params['WHERE'][] = [$itemtable . '.is_template' => 0];
            }
            $params['WHERE'] += getEntitiesRestrictCriteria($itemtable, '', '', $item->maybeRecursive());
            $params['ORDER'] = "glpi_entities.completename, $namefield";

            $iterator = $DB->request($params);
            $nb = count($iterator);

            if ($nb > $_SESSION['glpilist_limit']) {

               $opt = ['order'      => 'ASC',
                            'is_deleted' => 0,
                            'reset'      => 'reset',
                            'start'      => 0,
                            'sort'       => 80,
                            'criteria'   => [0 => ['value'      => '$$$$'.$instID,
                                                             'searchtype' => 'contains',
                                                             'field'      => 29]]];

               $url  = $item::getSearchURL();
               $url .= (strpos($url, '?') ? '&':'?');
               $url .= Toolbox::append_params($opt);
               $link = "<a href='$url'>" . __('Device list')."</a>";

               $data[$itemtype] = ['longlist' => true,
                                        'name'     => sprintf(__('%1$s: %2$s'),
                                                              $item->getTypeName($nb), $nb),
                                        'link'     => $link];
            } else if ($nb > 0) {
               $data[$itemtype] = [];
               while ($objdata = $iterator->next()) {
                  $data[$itemtype][$objdata['id']] = $objdata;
                  $used[$itemtype][$objdata['id']] = $objdata['id'];
               }
            }
            $totalnb += $nb;
         }
      }

      if ($canedit
          && (($contract->fields['max_links_allowed'] == 0)
              || ($contract->fields['max_links_allowed'] > $totalnb))
          && ($withtemplate != 2)) {
         echo "<div class='firstbloc'>";
         echo "<form name='contract_form$rand' id='contract_form$rand' method='post'
                action='".Toolbox::getItemTypeFormURL(__CLASS__)."'>";

         echo "<table class='tab_cadre_fixe'>";
         echo "<tr class='tab_bg_2'><th colspan='2'>".__('Add an item')."</th></tr>";

         echo "<tr class='tab_bg_1'><td class='right'>";
         Dropdown::showSelectItemFromItemtypes(['itemtypes'
                                                       => $CFG_GLPI["contract_types"],
                                                     'entity_restrict'
                                                       => ($contract->fields['is_recursive']
                                                           ?getSonsOf('glpi_entities',
                                                                      $contract->fields['entities_id'])
                                                           :$contract->fields['entities_id']),
                                                     'checkright'
                                                       => true,
                                                     'used'
                                                       => $used]);
         echo "</td><td class='center'>";
         echo "<input type='submit' name='add' value=\""._sx('button', 'Add')."\" class='submit'>";
         echo "<input type='hidden' name='contracts_id' value='$instID'>";
         echo "</td></tr>";
         echo "</table>";
         Html::closeForm();
         echo "</div>";
      }

      echo "<div class='spaced'>";
      if ($canedit && $totalnb) {
         Html::openMassiveActionsForm('mass'.__CLASS__.$rand);
         $massiveactionparams = ['container' => 'mass'.__CLASS__.$rand];
         Html::showMassiveActions($massiveactionparams);
      }
      echo "<table class='tab_cadre_fixehov'>";
      $header_begin  = "<tr>";
      $header_top    = '';
      $header_bottom = '';
      $header_end    = '';

      if ($canedit && $totalnb) {
         $header_top    .= "<th width='10'>".Html::getCheckAllAsCheckbox('mass'.__CLASS__.$rand);
         $header_top    .= "</th>";
         $header_bottom .= "<th width='10'>".Html::getCheckAllAsCheckbox('mass'.__CLASS__.$rand);
         $header_bottom .= "</th>";
      }
      $header_end .= "<th>".__('Type')."</th>";
      $header_end .= "<th>".__('Entity')."</th>";
      $header_end .= "<th>".__('Name')."</th>";
      $header_end .= "<th>".__('Serial number')."</th>";
      $header_end .= "<th>".__('Inventory number')."</th>";
      $header_end .= "<th>".__('Status')."</th>";
      $header_end .= "</tr>";
      echo $header_begin.$header_top.$header_end;

      $totalnb = 0;
      foreach ($data as $itemtype => $datas) {

         if (isset($datas['longlist'])) {
            echo "<tr class='tab_bg_1'>";
            if ($canedit) {
               echo "<td>&nbsp;</td>";
            }
            echo "<td class='center'>".$datas['name']."</td>";
            echo "<td class='center' colspan='2'>".$datas['link']."</td>";
            echo "<td class='center'>-</td><td class='center'>-</td></tr>";

         } else {
            $prem = true;
            $nb   = count($datas);
            foreach ($datas as $objdata) {
               $item = new $itemtype();
               if ($item instanceof Item_Devices) {
                  $name = $objdata["name_device"];
               } else {
                  $name = $objdata["name"];
               }
               if ($_SESSION["glpiis_ids_visible"]
                   || empty($data["name"])) {
                  $name = sprintf(__('%1$s (%2$s)'), $name, $objdata["id"]);
               }
               $link = $itemtype::getFormURLWithID($objdata["id"]);
               $name = "<a href=\"".$link."\">".$name."</a>";

               echo "<tr class='tab_bg_1'>";
               if ($canedit) {
                  echo "<td width='10'>";
                  Html::showMassiveActionCheckBox(__CLASS__, $objdata["linkid"]);
                  echo "</td>";
               }
               if ($prem) {
                  $typename = $item->getTypeName($nb);
                  echo "<td class='center top' rowspan='$nb'>".
                         ($nb  >1 ? sprintf(__('%1$s: %2$s'), $typename, $nb): $typename)."</td>";
                  $prem = false;
               }
               echo "<td class='center'>";
               echo Dropdown::getDropdownName("glpi_entities", $objdata['entity'])."</td>";
               echo "<td class='center".
                      (isset($objdata['is_deleted']) && $objdata['is_deleted'] ? " tab_bg_2_2'" : "'");
               echo ">".$name."</td>";
               echo"<td class='center'>".
                      (isset($objdata["serial"])? "".$objdata["serial"]."" :"-")."</td>";
               echo "<td class='center'>".
                      (isset($objdata["otherserial"])? "".$objdata["otherserial"]."" :"-")."</td>";
               echo "<td class='center'>";
               if (isset($objdata["states_id"])) {
                  echo Dropdown::getDropdownName("glpi_states", $objdata['states_id']);
               } else {
                  echo '&nbsp;';
               }
               echo "</td></tr>";

            }
         }
      }
      if ($number) {
         echo $header_begin.$header_bottom.$header_end;
      }

      echo "</table>";
      if ($canedit && $number) {
         $massiveactionparams['ontop'] = false;
         Html::showMassiveActions($massiveactionparams);
         Html::closeForm();
      }
      echo "</div>";
   }


   static function getRelationMassiveActionsSpecificities() {
      global $CFG_GLPI;

      $specificities              = parent::getRelationMassiveActionsSpecificities();
      $specificities['itemtypes'] = $CFG_GLPI['contract_types'];

      return $specificities;
   }
}
